Sheet medium flattening device and financial self-service device

Abstract

A sheet medium flattening device includes a mounting frame configured to mount and support following components; an annular passage, including an annular inner passage plate and an annular outer passage plate, a heating module arranged in a hollow inner cavity of the inner passage plate to supply heat for the inner passage plate; at least one pinch roller arranged at an outer side of the annular guiding plate and realizing clamping with the inner passage plate through a hole slot arranged in the annular guiding plate; a reversing mechanism configured to selectively convey banknotes between the conveying passage and the annular passage of the flattening device; a driving device configured to drive the inner passage plate to rotate; and a control system configured to control a temperature of the heating module and control a selectively switchover of the reversing mechanism.

What is claimed is: 
     
       1. A sheet medium flattening device, configured to be arranged in a sheet medium conveying passage and configured to flatten an inputted sheet medium, comprising:
 a mounting frame configured to mount and support following components; 
 an annular passage, comprising an annular inner passage plate and an annular outer passage plate, wherein the inner passage plate has a hollow inner cavity, a heating module is arranged in the inner cavity, the heating module is configured to supply heat for the inner passage plate, the outer passage plate is an annular guiding plate surrounding the inner passage plate, and the outer passage plate is provided with a sheet medium entrance abuttingly joined with the sheet medium conveying passage; 
 at least one pinch roller arranged at an outer side of the annular guiding plate, wherein a hole slot is arranged in the annular guiding plate at a position corresponding to the pinch roller, and the pinch roller realizes clamping with the inner passage plate through the hole slot; 
 a reversing mechanism arranged at the sheet medium entrance and configured to selectively convey banknotes between the conveying passage and the annular passage of the flattening device; 
 a driving device configured to drive the inner passage plate to rotate; and 
 a control system configured to control a temperature of the heating module and control a selectively switchover of the reversing mechanism. 
 
     
     
       2. The sheet medium flattening device according to  claim 1 , wherein the heating module comprises:
 a heating body holder fixedly sleeved on a shaft, wherein the shaft is relatively fixedly mounted on the mounting frame; and 
 at least one heating piece fixedly arranged on the heating body holder, and controlled by the control system to perform a heating operation. 
 
     
     
       3. The sheet medium flattening device according to  claim 2 , wherein the inner passage plate is rotatably arranged on the shaft by a rolling bearing to wrap and seal the heating piece, and the inner passage plate rotates by receiving power from the driving mechanism through a gear fixedly connected to the inner passage plate. 
     
     
       4. The sheet medium flattening device according to  claim 2 , wherein there are twelve heating pieces which uniformly surround the shaft and are fixed on the heating body holder through a limiting piece. 
     
     
       5. The sheet medium flattening device according to  claim 1 , wherein there are nine pinch rollers uniformly distributed on an outer surface of the annular guiding plate to surround and compress the inner passage plate. 
     
     
       6. The sheet medium flattening device according to  claim 1 , further comprising a front passage assembly, a lower passage and a rear passage assembly which form transition with the sheet medium conveying passage, wherein the lower passage is arranged directly opposite to the sheet medium entrance of the outer passage plate, and the sheet medium is controlled by the reversing mechanism to be selectively introduced into the annular passage or the lower passage to be conveyed. 
     
     
       7. The sheet medium flattening device according to  claim 6 , wherein the front passage assembly comprises a front passage plate holder configured to support a front passage plate, and the front passage plate is provided with a sensor for detecting banknotes, a driving shaft for conveying the banknotes, and at least one set of floating pressing rollers corresponding to the driving shaft. 
     
     
       8. The sheet medium flattening device according to  claim 6 , wherein the rear passage assembly comprises a rear passage plate holder configured to support a rear passage plate, and the rear passage plate is provided with a sensor for detecting banknotes, a driving shaft for conveying the banknotes, and at least one set of floating pressing rollers corresponding to the driving shaft. 
     
     
       9. A financial self-service equipment, comprising:
 a banknote inlet/outlet configured to deposit and/or withdraw banknotes; 
 a banknote storage box configured to store and discharge the banknotes; and 
 a banknote conveying passage configured to connect the banknote inlet/outlet and the banknote storage box and to convey the banknotes; 
 wherein the sheet medium flattening device according to  claim 1  is arranged in the banknote conveying passage. 
 
     
     
       10. The financial self-service equipment according to  claim 9 , wherein the heating module comprises:
 a heating body holder fixedly sleeved on a shaft, wherein the shaft is relatively fixedly mounted on the mounting frame; and 
 at least one heating piece fixedly arranged on the heating body holder, and controlled by the control system to perform a heating operation. 
 
     
     
       11. The financial self-service equipment according to  claim 10 , wherein the inner passage plate is rotatably arranged on the shaft by a rolling bearing to wrap and seal the heating piece, and the inner passage plate rotates by receiving power from the driving mechanism through a gear fixedly connected to the inner passage plate. 
     
     
       12. The financial self-service equipment according to  claim 10 , wherein there are twelve heating pieces which uniformly surround the shaft and are fixed on the heating body holder through a limiting piece. 
     
     
       13. The financial self-service equipment according to  claim 9 , wherein there are nine pinch rollers uniformly distributed on an outer surface of the annular guiding plate to surround and compress the inner passage plate. 
     
     
       14. The financial self-service equipment according to  claim 9 , wherein the sheet medium flattening device further comprises a front passage assembly, a lower passage and a rear passage assembly which form transition with the sheet medium conveying passage, wherein the lower passage is arranged directly opposite to the sheet medium entrance of the outer passage plate, and the sheet medium is controlled by the reversing mechanism to be selectively introduced into the annular passage or the lower passage to be conveyed. 
     
     
       15. The financial self-service equipment according to  claim 14 , wherein the front passage assembly comprises a front passage plate holder configured to support a front passage plate, and the front passage plate is provided with a sensor for detecting banknotes, a driving shaft for conveying the banknotes, and at least one set of floating pressing rollers corresponding to the driving shaft. 
     
     
       16. The financial self-service equipment according to  claim 14 , wherein the rear passage assembly comprises a rear passage plate holder configured to support a rear passage plate, and the rear passage plate is provided with a sensor for detecting banknotes, a driving shaft for conveying the banknotes, and at least one set of floating pressing rollers corresponding to the driving shaft.